Air conditioner and control method

Abstract

The invention provides an air conditioner and a control method. The air conditioner comprises a first mounting seat, a fan is arranged on the first mounting seat, a refrigerating part is arranged on the first mounting seat, and the fan can move on the first mounting seat towards the refrigerating part and is attached to the refrigerating part. According to the air conditioner, the technical problem that in the prior art, air conditioner fan blades are difficult to clean can be solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner and a control method. Background Art

[0002] The air conditioner is a device that can cool or heat the room. As time goes by, the dust on the indoor unit of the air conditioner will gradually increase, especially at the position of the fan blades. Because the crossflow fan blades are generally concave in shape, dust or lint will easily settle on the concave surface, causing dirt to gradually form on the concave surface of the blades. After a period of time, the accumulation of dirt will affect the air supply effect of the blades, and odor problems will occur over time.

[0003] Therefore, it is necessary to clean the air conditioner in time. In the prior art, the cleaning method of the air conditioner includes manual cleaning, which is time-consuming and labor-intensive. It is necessary to disassemble the various parts of the air conditioner for cleaning. After cleaning, the various parts need to be reassembled. The operation is quite cumbersome, especially for the structure inside the fan blade. The fan blade affects the reliability of the air conditioner operation. The assembly also requires certain skills, which makes cleaning difficult.

[0004] Due to the technical problems in the prior art such as the difficulty in cleaning the fan blades of the air conditioner, the present invention studies and designs an air conditioner and a control method. Summary of the invention

[0005] Therefore, the present invention provides an air conditioner and a control method, which can solve the technical problem of difficulty in cleaning the fan blades of the air conditioner in the prior art.

[0006] In order to solve the above problems, the present invention provides an air conditioner, comprising: a first mounting seat, on which a fan is arranged, and on which a refrigeration component is arranged, and the fan can move toward the refrigeration component on the first mounting seat and be in contact with the refrigeration component.

[0007] In some embodiments, the refrigeration component includes a substrate and a heat exchanger, the first mounting seat is located between the heat exchanger and the fan, a heat exchange tube is provided on the substrate, and both ends of the heat exchange tube are connected to the heat exchanger.

[0008] In some embodiments, the refrigeration component further includes a cover plate, one end of the base plate is disposed on the first mounting seat, the other end of the base plate is provided with a cover plate, an insulation plate is provided on the cover plate, and the heat exchange tube is located between the cover plate and the base plate.

[0009] In some embodiments, a first through hole and a second through hole are provided on the side wall of the substrate, one end of the heat exchange tube is connected to the heat exchanger after passing through the first through hole, and the other end of the heat exchange tube is connected to the heat exchanger after passing through the second through hole, and the heat exchange tube is arranged in a ring shape on the substrate along the circumference of the substrate.

[0010] In some embodiments, two first grooves are provided at the other end of the substrate, and two second grooves are provided at one end of the cover plate facing the substrate, the first grooves correspond to the second grooves one by one, and a channel is formed between one first groove and one second groove, and the heat exchange tube is connected with the heat exchanger through the channel, and the heat exchange tube is arranged in a ring shape on the substrate along the circumference of the substrate.

[0011] In some embodiments, a mounting hole is provided at one end of the substrate, a bearing is sleeved in the mounting hole, an inner ring of the bearing is provided with a first thread, and a connecting portion is provided at one end of the fan facing the substrate, a second thread is provided on the connecting portion, the second thread matches the first thread, and the second thread is opposite to the rotation direction of the fan.

[0012] In some embodiments, along the axial direction of the fan, the base plate and the fan are sequentially arranged on a first mounting seat, and the fan can move toward the base plate in the first mounting seat and move closely to the base plate.

[0013] In some embodiments, the air conditioner includes a second mounting seat, an air inlet and an air outlet, and the heat exchanger is disposed on the second mounting seat. Along the radial direction of the fan, the air inlet, the second mounting seat, the heat exchanger, the first mounting seat, the fan, and the air outlet are arranged in sequence.

[0014] The present invention also provides a control method for the above air conditioner, comprising the following steps:

[0015] Detection steps: detect the current ambient temperature Tn and humidity Vn, and calculate the current dew point temperature Tn;

[0016] Control step: Control the compressor operating frequency of the air conditioner to increase.

[0017] In some implementations, the step of controlling the compressor operating frequency of the air conditioner to increase further includes the following steps:

[0018] Checking step, detecting the current humidity in the air conditioner;

[0019] A determination step, determining a relationship between the current humidity in the air conditioner and a first preset value and a second preset value, wherein the first preset value is less than the second preset value;

[0020] The control step comprises: when the humidity in the air conditioner is less than a first preset value, controlling the compressor of the air conditioner to continuously run for a first preset time; when the humidity in the air conditioner is not less than the first preset value and the humidity in the air conditioner is less than a second preset value, controlling the compressor of the air conditioner to continuously run for a second preset time; when the humidity in the air conditioner is not less than the second preset value, controlling the compressor of the air conditioner to continuously run for a third preset time, wherein the first preset time is greater than the second preset time, and the second preset time is greater than the third preset time.

[0021] In some embodiments, when the compressor of the air conditioner continues to run for a first preset time, or the compressor of the air conditioner continues to run for a second preset time, or the compressor of the air conditioner continues to run for a third preset time, the following steps are also included:

[0022] The control step includes controlling the fan to reverse so that the fan is in contact with the refrigeration component and then shutting down the fan, controlling the compressor operating frequency of the air conditioner to increase so that the temperature of the refrigeration component is reduced to a first preset temperature and lasts for a fourth preset time, shutting down the compressor, controlling the electric heating component of the air conditioner to turn on, starting the fan, shutting down after a fifth preset time, and completing the cleaning.

[0023] In some embodiments, after controlling the compressor operating frequency of the air conditioner to increase, the following steps are also included: controlling the air outlet of the air conditioner to close, controlling the fan to rotate forward for a sixth preset time, and after an interval of a seventh preset time, controlling the air outlet of the air conditioner to close again, controlling the fan to rotate forward for a sixth preset time, repeating N times, controlling the electric heating component of the air conditioner to turn on, starting the fan, and shutting it down after the fifth preset time to complete cleaning.

[0024] The air conditioner and control method provided by the present invention have the following beneficial effects:

[0025] When the air conditioner fan needs to be cleaned, the refrigeration element works, the refrigerant exchanges heat with the air, causing condensed water to form on the refrigerant, and the fan moves toward the refrigeration element on the first mounting seat and is tightly attached to the refrigeration element, so that the condensed water flows to the fan, completing the cleaning of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0027] Figure 1 The explosion of the air conditioner of the present invention Figure 1 ;

[0028] Figure 2 The explosion of the air conditioner of the present invention Figure 2 ;

[0029] Figure 3 It is a structural schematic diagram of a fan in an air conditioner of the present invention;

[0030] Figure 4 yes Figure 3 A partial cross-sectional view of

[0031] Figure 5 The process of the control method of the air conditioner of another embodiment of the present invention is Figure 1 ;

[0032] Figure 6 The process of the control method of the air conditioner of another embodiment of the present invention is Figure 2 .

[0033] The accompanying drawings are marked as follows:

[0034] 1. First mounting seat; 2. Fan; 3. Base plate; 4. Bearing; 5. Insulation plate; 6. Cover plate; 7. First through hole; 8. Second through hole; 9. Heat exchange tube; 10. Heat exchanger; 11. Connecting part; 12. Second mounting seat; 13. Air inlet; 14. Air outlet. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0038] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0039] See also Figure 1-6 As shown, according to an embodiment of the present invention, there is provided an air conditioner, comprising: a first mounting seat 1, a fan 2 is arranged on the first mounting seat 1, a refrigeration component is arranged on the first mounting seat 1, and the fan 2 can move toward the refrigeration component on the first mounting seat 1 and be in close contact with the refrigeration component. In this technical solution, when the fan 2 of the air conditioner needs to be cleaned, the refrigeration component works, the refrigerant exchanges heat with the air, so that condensed water is generated on the refrigerant, and the fan 2 moves toward the refrigeration component on the first mounting seat 1 and is in close contact with the refrigeration component, so that the condensed water flows to the fan 2, and the fan 2 is cleaned. The air conditioner of the present invention is a vertical air conditioner or a cabinet air conditioner.

[0040] In some embodiments, the refrigeration element includes a substrate 3 and a heat exchanger 10, the first mounting seat 1 is located between the heat exchanger 10 and the fan, a heat exchange tube 9 is provided on the substrate 3, and both ends of the heat exchange tube 9 are connected to the heat exchanger 10. In this technical solution, the first mounting seat 1 is U-shaped, the fan 2 is arranged in the first mounting seat 1, and the substrate 3 is arranged at one end of the first mounting seat 1. Both ends of the heat exchange tube 9 are connected to the heat exchanger 10, and the refrigerant in the heat exchanger 9 flows through the heat exchange tube 9, thereby generating heat exchange with the substrate 3, so that condensed water is generated on the substrate 3.

[0041] In some embodiments, the refrigeration component further includes a cover plate 6, one end of the substrate 3 is arranged on the first mounting seat 1, the other end of the substrate 3 is provided with the cover plate 6, the cover plate 6 is provided with a heat preservation plate 5, and the heat exchange tube 9 is located between the cover plate 6 and the substrate 3. In this technical solution, the substrate 3 and the cover plate 6 are both made of aluminum alloy, the heat preservation plate 5 adopts a foam structure, and preferably, the heat preservation plate 5 is covered on the cover plate 6, thereby improving the heat exchange effect between the substrate 3 and the cover plate 6 and the air, and quickly generating water droplets.

[0042] In some embodiments, the side wall of the substrate 3 is provided with a first through hole 7 and a second through hole 8, one end of the heat exchange tube 9 is connected to the heat exchanger 10 after passing through the first through hole 7, and the other end of the heat exchange tube 9 is connected to the heat exchanger 10 after passing through the second through hole 8, and the heat exchange tube 9 is arranged in a ring shape on the substrate 3 along the circumference of the substrate 3. In this technical solution, the other end of the heat exchange tube 9 is connected to the heat exchanger 10 after passing through the second through hole 8, and the heat exchange tube 9 is arranged in a ring shape on the substrate 3 along the circumference of the substrate 3, thereby improving the heat exchange efficiency between the heat exchange tube 9 and the substrate 3.

[0043] The air conditioner of the present invention is provided with a protruding heat exchange tube 9 on the top of the evaporator, and the heat exchange tube 9 flows through the substrate 3 to form a cooling end and is arranged above the metal cross-flow fan blade; by combining the condensation of the protruding cold end of the evaporator and combining with logic control, the condensed water can be dripped on the end face of the fan blade; combined with the reverse rotation of the fan blade, the substrate 3 and the fan 2 are fitted to achieve cooling and freezing of the fan blade, and the water attached to the fan blade can be frozen. Since the ice has an expansion effect, the fan blade can be self-cleaned in depth. The fan blade is easy to get dirty, the blades of the cross-flow fan blade generally have a concave surface, and the concave surface is easy to hide dirt and is difficult to clean properly; the air conditioner is difficult to disassemble and assemble, the cleaning of the fan blade and the fan cavity is complicated, and there is a risk of water ingress to components during the cleaning process; the use of water impact cleaning is difficult, the structure is complex, and the impact water is easy to affect the impact on the control circuit, and there is also a risk of causing safety hazards.

[0044] In some embodiments, the other end of the substrate 3 is provided with two first grooves, and the end of the cover plate 6 facing the substrate 3 is provided with two second grooves, the first grooves correspond to the second grooves one by one, and a channel is formed between one of the first grooves and one of the second grooves, and the heat exchange tube 9 is connected with the heat exchanger 10 through the channel, and the heat exchange tube 9 is arranged in a ring shape on the substrate 3 along the circumference of the substrate 3. In this technical solution, the two ends of the heat exchange tube 9 are respectively connected with the heat exchanger 10 through a channel, and the heat exchange tube 9 is arranged in a ring shape on the substrate 3 along the circumference of the substrate 3, so as to improve the heat exchange efficiency between the heat exchange tube 9 and the substrate 3.

[0045] In some embodiments, a mounting hole is provided at one end of the substrate 3, a bearing 4 is sleeved in the mounting hole, a first thread is provided on the inner ring of the bearing 4, a connecting portion 11 is provided at one end of the fan 2 facing the substrate 3, a second thread is provided on the connecting portion 11, the second thread matches the first thread, and the second thread rotates in the opposite direction to the fan 2. In this technical solution, the second thread matches the first thread, and the second thread rotates in the opposite direction to the fan blade, that is, the first thread rotates in the same direction as the fan blade. By using the connecting portion 11, when the fan 2 rotates forward, there is a gap between the fan 2 and the substrate 3. When the fan 2 rotates reversely, the fan 2 moves toward the substrate 3 under the action of the first thread and the second thread until the fan 2 and the substrate 3 are attached.

[0046] In some embodiments, along the axial direction of the fan 2, the substrate 3 and the fan 2 are sequentially arranged on the first mounting seat 1, and the fan 2 can move toward the substrate 3 in the first mounting seat 1 and move closely with the substrate 3. In this technical solution, along the axial direction of the fan 2, the substrate 3 and the fan 2 are sequentially arranged on the first mounting seat 1, and the fan 2 adopts a cross-flow fan, that is, the substrate 3 is located at one end of the fan 2. Since the cabinet of the air conditioner, that is, the substrate 3 is located above the fan 2, the substrate 3 can fall on the fan 2 under the action of gravity, so that the fan 2 can be cleaned as a whole.

[0047] In some embodiments, the air conditioner includes a second mounting seat 12, an air inlet 13 and an air outlet 14, and the heat exchanger 10 is arranged on the second mounting seat 12. Along the radial direction of the fan 2, the air inlet 13, the second mounting seat 12, the heat exchanger 10, the first mounting seat 1, the fan 2, and the air outlet 14 are arranged in sequence. In this technical solution, the heat exchanger 10 and the second mounting seat 12 are U-shaped, the heat exchanger 10 is installed on the second mounting seat 12, and the first mounting seat 1 is installed in the heat exchanger 10. The heat exchanger 10 is an evaporator.

[0048] The air conditioner of the present invention adopts a brand-new structure to solve the problem that the fan blades of the traditional cross-flow air duct components cannot be cleaned or cannot be cleaned properly, thereby effectively reducing the difficulty of cleaning and improving the cleaning effect.

[0049] The air conditioner of the present invention belongs to a cross-flow fan system, which is mainly composed of an air inlet 13, a heat exchanger 10, and related parts of a fan 2. Figure 1As shown. When the fan is turned on, the air conditioning air enters from the air inlet 13, passes through the heat exchanger 10 for heat exchange, and then passes through the fan 2 and is discharged through the air outlet 14. The heat exchanger 10 is a U-shaped structure, and the fan 2 is surrounded in the middle of the U-shaped structure. The heat exchanger 10 has a heat exchange tube 9 at the top of the U, which surrounds the top side in the middle of the U-shaped structure. The fan 2 uses a metal fan blade 8, and there are multiple components on the top side of the fan 2. The upper side of the first mounting seat 1 is a base plate 3, and the heat exchange tube 9 is placed in the middle of the base plate 3. There is a cover plate 6 on the upper side of the base plate 3. The base plate 3 and the cover plate 6 are both made of aluminum alloy. There is a bearing 4 in the middle of the base plate 3 and the cover plate 6 for assembling the fan 2. There is an insulation board 5 on the top, and the insulation board 5 uses a foam structure. Refer to Figure 2 As shown. The top heat exchange tube 9 of the heat exchanger 10 surrounds the top of the fan 2. When the air conditioner is running, it will circulate on the top side. The heat exchange tube 9 is sandwiched between the base plate 3 and the cover plate 6, and the middle is coated with thermal conductive silicone grease. When the refrigerant temperature of the heat exchange tube 9 is low, the cold will be transferred from the refrigerant tube to the base plate 3. The insulation board 5 on the top side plays a role in heat preservation. The connection part 11 on the top side of the fan 2 is provided with a reverse thread, and there is a corresponding matching thread on the inner ring of the bearing. When the fan 2 rotates forward, the first thread has no effect on it. When the fan 2 rotates reversely, the first thread and the second thread will be engaged. After engagement, the fan 2 will be out of engagement when rotating forward and return to normal state, which is equivalent to the fan 2 rotating upward. When it turns to the top side, the end face of the fan 2 will fit with 3, thereby transferring the cold to the metal fan blade of the fan 2 to achieve the control of the fan blade temperature. When the fan 2 rotates with water, the water droplets can be thrown onto the inner wall of the fan cavity.

[0050] The present invention also provides a control method for the above air conditioner, comprising the following steps:

[0051] Detection steps: detect the current ambient temperature Tn and humidity Vn, and calculate the current dew point temperature Tn;

[0052] Control step: Control the compressor operating frequency of the air conditioner to increase.

[0053] In this technical solution, the air conditioner is started, and for fan cleaning, the user can manually start the cleaning mode or start the cleaning mode at a scheduled time, detect the current ambient temperature Tn and humidity Vn, and calculate the current dew point temperature Tn; the compressor operating frequency of the air conditioner is controlled to increase. At this time, the refrigerant temperature in the heat exchanger 10 is reduced, and then the temperature of the heat exchange tube 9 is reduced to below the current dew point temperature T1, so that condensed water is generated on the substrate 3, and the condensed water falls on the fan 2 under the action of gravity, thereby completing the cleaning of the fan 2.

[0054] In some implementations, the step of controlling the compressor operating frequency of the air conditioner to increase further includes the following steps:

[0055] Checking step, detecting the current humidity in the air conditioner;

[0056] A determination step, determining a relationship between the current humidity in the air conditioner and a first preset value and a second preset value, wherein the first preset value is less than the second preset value;

[0057] The control step comprises: when the humidity in the air conditioner is less than a first preset value, controlling the compressor of the air conditioner to continuously run for a first preset time; when the humidity in the air conditioner is not less than the first preset value and the humidity in the air conditioner is less than a second preset value, controlling the compressor of the air conditioner to continuously run for a second preset time; when the humidity in the air conditioner is not less than the second preset value, controlling the compressor of the air conditioner to continuously run for a third preset time, wherein the first preset time is greater than the second preset time, and the second preset time is greater than the third preset time.

[0058] In this technical solution, preferably, the first preset value is 70, the second preset value is 80, the first preset time is ((100-humidity in the air conditioner) / 3) minutes, the second preset time is 10 minutes, and the third preset time is 5 minutes.

[0059] In some embodiments, when the compressor of the air conditioner continues to run for a first preset time, or the compressor of the air conditioner continues to run for a second preset time, or the compressor of the air conditioner continues to run for a third preset time, the following steps are also included:

[0060] The control step includes controlling the fan 2 to reverse so that the fan 2 comes into contact with the refrigeration component and then shuts down the fan, controlling the compressor of the air conditioner to increase its operating frequency so that the temperature of the refrigeration component drops to a first preset temperature and lasts for a fourth preset time, shuts down the compressor, controls the electric heating component of the air conditioner to turn on, starts the fan, shuts down after a fifth preset time, and completes cleaning.

[0061] In this technical solution, after the compressor of the air conditioner continues to run for the first preset time, or the compressor of the air conditioner continues to run for the second preset time, or the compressor of the air conditioner continues to run for the third preset time, water basically covers the blades of the fan 2, and the fan 2 is controlled to reverse, so that the fan 2 is close to the refrigeration component, and the compressor of the air conditioner is controlled to increase the operating frequency, so that the temperature of the refrigeration component is reduced to the first preset temperature, which is -3 degrees Celsius, and continues for the fourth preset time, which is 5 minutes, that is, cooling is continued for 5 minutes, and the temperature of the heat exchange tube 9 is further reduced to below the freezing temperature. During this cooling process, condensation will also occur on the surface of the fan blade of the fan 2, and after reaching the target temperature, the surface will gradually freeze. Since water can penetrate into the gaps of the stains, the process of ice expansion can separate the dirt from the surface of the fan blade to a certain extent. Then turn off the compressor, start the electric heating of the air conditioner, start the fan 2, make the fan 2 rotate forward and rotate at a low speed, the speed is less than 10 rpm, for 5 minutes, then control the fan 2 to accelerate forward for 5 minutes, and the speed is accelerated to 600 rpm, which is equivalent to the ice melting, and the fan 2 is swinging outward, the water will flow to the water tray with the stains, which is a process of cleaning and draining. After a period of time in this stage, there is less water on the surface of the fan blades of the fan 2, showing a similar wet state, and the fan blades need to be accelerated to dry the fan blades for a period of time. After the fan blades are dried, the user can be prompted that the cleaning is completed.

[0062] The control method of the air conditioner of the present invention is combined with reference to Figure 5As shown, the user can turn it on by himself. The user may feel that there is a peculiar smell or smoke in the environment, and the air conditioner has a smell, and the fan blades need to be cleaned. It can also be cleaned regularly, based on time periods, for example, once a month. When the control logic starts, the air conditioner will first detect the current ambient temperature and humidity, determine the current dew point temperature of the environment, and then increase the compressor frequency to reduce the pipe temperature, so that the temperature of the heat exchange tube 9 is lower than the current dew point temperature. At this time, condensation will appear on the top of the fan blade. At this time, condensation will continue to appear, and water droplets will gradually drip on the fan blade. The operation time under different humidity is different. After a period of time, the water is basically covered on the fan blade. At this time, the fan 2 is reversed, and the fan blade will be close to the cooling substrate 3. In this case, the pipe temperature is further reduced to below the problem of freezing. During this cooling process, condensation will also occur on the surface of the fan blade, and after reaching the target temperature, the surface will gradually freeze. Since water can penetrate into the gaps of the stains, the process of ice expansion can separate the dirt from the surface of the fan blade to a certain extent. After cooling for a certain period of time, start the electric heating and slowly start the fan, which is equivalent to the ice melting and swinging outward. The water will flow to the water tray with the stains, which is a process of cleaning and drainage. After a period of time in this stage, there is less water on the surface of the fan blades, showing a similar wet state. The fan blades need to be accelerated to dry them for a period of time. After the fan blades are dried, the user can be prompted that the cleaning is completed and the normal control process can be entered.

[0063] In some embodiments, after the compressor operating frequency of the air conditioner is increased, the following steps are further included: controlling the air outlet of the air conditioner to close, controlling the fan 2 to rotate forward for a sixth preset time, after a seventh preset time, controlling the air outlet of the air conditioner to close again, controlling the fan 2 to rotate forward for a sixth preset time, repeating N times, controlling the electric heating component of the air conditioner to start, starting the fan, and closing it after the fifth preset time, and completing the cleaning. In this technical solution, the compressor operating frequency of the air conditioner is controlled to increase. At this time, the refrigerant temperature in the heat exchanger 10 decreases, and then the temperature of the heat exchange tube 9 decreases to below the current dew point temperature T1, so that condensed water is generated on the substrate 3, and the condensed water falls on the fan 2 under the action of gravity. When the humidity in the air conditioner is not less than the first preset value, and the humidity in the air conditioner is less than the second preset value, the compressor of the air conditioner is controlled to continue to run for a second preset time. When the humidity in the air conditioner is not less than the second preset value, the compressor of the air conditioner is controlled to continue to run for a third preset time. The first preset value is 70, the second preset value is 80, and the second preset time is 10 minutes. At this time, the condensed water covers the fan blades of the fan 2, and then the air outlet of the air conditioner is closed, and the fan 2 is controlled to rotate forward for the sixth preset time. After the seventh preset time, the air outlet of the air conditioner is controlled to be closed again, and the fan 2 is controlled to rotate forward for the sixth preset time, and repeated N times, the sixth preset time is 10 seconds, the speed is 600 rpm, and the seventh preset time is 10 minutes, so that the stains on the fan blades flow to the water receiving tray along with the water droplets under the action of centrifugal force. This is repeated N times, N is 5 times, and then the compressor is turned off, the air conditioner electric heating is started, and the fan 2 is started, so that the fan 2 rotates forward and rotates at a low speed, with a speed of less than 10 rpm, for 5 minutes, and then the fan 2 is controlled to accelerate forward for 5 minutes, and the speed is accelerated to 600 rpm, which is equivalent to the ice being continuously melted, and the fan 2 is swinging outward, and the water will flow to the water receiving tray with the stains, which is a process of cleaning and drainage. After a period of time in this stage, there is less water on the surface of the fan blades of the fan 2, presenting a wet state. The fan blades need to be accelerated to dry them. This process lasts for a period of time. After the fan blades are dried, the user is prompted that the cleaning is complete.

[0064] See also Figure 6 As described above, another embodiment of the control method of the air conditioner of the present invention differs from the previous embodiment mainly in that when condensation water drops onto the fan blades, the fan blades have an intermittent water-shedding process to throw the water into the fan cavity. After repeating this process a certain number of times, the water will impact and clean the inner wall of the fan cavity. After a period of time, the water will flow along the side wall carrying the stains, and the side wall will appear wet. At this time, the air outlet is closed and the electric heating is started, which is equivalent to heating the fan cavity. After the overall drying is completed, a prompt is displayed to complete the cleaning process and enter normal control.

[0065] The air conditioner of the present invention adjusts the evaporator pipeline, sets the refrigeration element on the upper edge of the fan blade, and combines with the corresponding control method to make condensation water flow to the fan blade; when there are water droplets on the crossflow fan blade, and by adjusting the crossflow fan blade, the refrigeration element is in contact with the fan blade, the temperature of the fan blade is reduced, and there is an expansion effect due to ice formation, and combined with electric heating and other controls. It can achieve self-cleaning of the fan blade depth. By combining condensation dripping, the operation and centrifugal force of the fan blade, and combining temperature and humidity, intermittent rotation of the fan blade and other control methods, the condensation water is covered in the air conditioner cavity, and the internal cleaning of the air conditioner is achieved.

[0066] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. An air conditioner, characterized in that: include: A first mounting seat (1), a fan (2) being arranged on the first mounting seat (1), a refrigeration component being arranged on the first mounting seat (1), the fan (2) being able to move towards the refrigeration component on the first mounting seat (1) and being in contact with the refrigeration component.

2. The air conditioner according to claim 1, characterized in that: The refrigeration component comprises a base plate (3) and a heat exchanger (10); the first mounting seat (1) is located between the heat exchanger (10) and the fan; a heat exchange tube (9) is provided on the base plate (3); both ends of the heat exchange tube (9) are connected to the heat exchanger (10).

3. The air conditioner according to claim 2, characterized in that: The refrigeration component further comprises a cover plate (6); one end of the base plate (3) is arranged on the first mounting seat (1); the other end of the base plate (3) is provided with a cover plate (6); a heat preservation plate (5) is provided on the cover plate (6); and the heat exchange tube (9) is located between the cover plate (6) and the base plate (3).

4. The air conditioner according to claim 3, characterized in that: The side wall of the substrate (3) is provided with a first through hole (7) and a second through hole (8); one end of the heat exchange tube (9) passes through the first through hole (7) and is connected to the heat exchanger (10); the other end of the heat exchange tube (9) passes through the second through hole (8) and is connected to the heat exchanger (10); along the circumference of the substrate (3), the heat exchange tube (9) is arranged in a ring shape on the substrate (3).

5. The air conditioner according to claim 3, characterized in that: The other end of the base plate (3) is provided with two first grooves, and the end of the cover plate (6) facing the base plate (3) is provided with two second grooves, the first grooves corresponding to the second grooves one by one, and a channel is formed between one of the first grooves and one of the second grooves, and the heat exchange tube (9) is connected to the heat exchanger (10) through the channel, and the heat exchange tube (9) is arranged in a ring shape on the base plate (3) along the circumference of the base plate (3).

6. The air conditioner according to claim 3, characterized in that: A mounting hole is provided at one end of the base plate (3), a bearing (4) is sleeved in the mounting hole, an inner ring of the bearing (4) is provided with a first thread, and a connecting portion (11) is provided at one end of the fan (2) facing the base plate (3), a second thread is provided on the connecting portion (11), the second thread matches the first thread, and the second thread rotates in the opposite direction to the fan (2).

7. The air conditioner according to claim 2, characterized in that: Along the axial direction of the fan (2), the base plate (3) and the fan (2) are arranged on the first mounting seat (1) in sequence, and the fan (2) can move towards the base plate (3) in the first mounting seat (1) and move closely with the base plate (3).

8. The air conditioner according to claim 2, characterized in that: The air conditioner comprises a second mounting seat (12), an air inlet portion (13) and an air outlet portion (14); the heat exchanger (10) is arranged on the second mounting seat (12); and along the radial direction of the fan (2), the air inlet portion (13), the second mounting seat (12), the heat exchanger (10), the first mounting seat (1), the fan (2) and the air outlet portion (14) are arranged in sequence.

9. The method for controlling an air conditioner according to any one of claims 1 to 9, characterized in that: The following steps are involved: Detection steps: detect the current ambient temperature Tn and humidity Vn, and calculate the current dew point temperature Tn; Control step: Control the compressor operating frequency of the air conditioner to increase.

10. The air conditioner control method according to claim 9, characterized in that: The control of increasing the operating frequency of the compressor of the air conditioner further includes the following steps: Checking step, detecting the current humidity in the air conditioner; A determination step, determining a relationship between the current humidity in the air conditioner and a first preset value and a second preset value, wherein the first preset value is less than the second preset value; The control step comprises: when the humidity in the air conditioner is less than a first preset value, controlling the compressor of the air conditioner to continuously run for a first preset time; when the humidity in the air conditioner is not less than the first preset value and the humidity in the air conditioner is less than a second preset value, controlling the compressor of the air conditioner to continuously run for a second preset time; when the humidity in the air conditioner is not less than the second preset value, controlling the compressor of the air conditioner to continuously run for a third preset time, wherein the first preset time is greater than the second preset time, and the second preset time is greater than the third preset time.

11. The air conditioner control method according to claim 10, characterized in that: When the compressor of the air conditioner continues to operate for a first preset time, or the compressor of the air conditioner continues to operate for a second preset time, or the compressor of the air conditioner continues to operate for a third preset time, The following steps are included: The control step comprises: controlling the fan (2) to reverse so that the fan (2) comes into contact with the refrigeration component and then shutting down the fan; controlling the compressor of the air conditioner to increase its operating frequency so that the temperature of the refrigeration component drops to a first preset temperature and lasts for a fourth preset time; shutting down the compressor; controlling the electric heating component of the air conditioner to start, starting the fan, and shutting down the fan after a fifth preset time, thereby completing the cleaning.

12. The air conditioner control method according to claim 9, characterized in that: After the compressor operating frequency of the air conditioner is increased, the method further includes the following steps: controlling the air outlet of the air conditioner to close, controlling the fan (2) to rotate forward for a sixth preset time, and after a seventh preset time, controlling the air outlet of the air conditioner to close again, controlling the fan (2) to rotate forward for a sixth preset time, repeating N times, controlling the electric heating component of the air conditioner to turn on, starting the fan, and shutting it down after the fifth preset time, thereby completing cleaning.

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